GAS-HYBRID SOURCE 14C-AMS:Application to terrestrial ecosystem, biological, and environmental research

Guilderson, T. P.

doi:10.2172/1056603

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Background Concentration Of Radioactive Carbon ( 14 C) In Le1

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2018

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“…The concentration of radioactive carbon ( 14 C) in the atmosphere, which rapidly increased following the atmospheric nuclear tests conducted in the mid-20th century, has gradually decreased over time due to its absorption by the ocean [4,5]. To measure the background concentration of radioactive carbon ( 14 C) that is not affected by regional air pollution, it is appropriate to sample on remote islands considered to be non-polluted areas, as well as vessels in the open ocean and aircrafts.…”

Section: Background Concentration Of Radioactive Carbon ( 14 C) In Lementioning

confidence: 99%

Radiocarbon (14C) Concentration of Local Pollution in Street Trees Located at Intersections

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2018

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At large intersections, vehicles consume and generate a large amount of fossil fuel. Carbon derived from fossil fuels that do not contain radioactive carbon (14C), i.e., dead carbon, is released in large amounts in the roadside air environment. By means of photosynthesis, street trees along the roadside assimilate both dead carbon, not containing radioactive carbon (14C), and contemporary carbon, which includes radioactive carbon (14C). Therefore, the concentration of radioactive carbon (14C) in leaves of trees growing in heavily polluted environments decreases.

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Section: Background Concentration Of Radioactive Carbon ( 14 C) In Lementioning

confidence: 99%

Radiocarbon (14C) Concentration of Local Pollution in Street Trees Located at Intersections

D¹

2018

Preprint

View full text Add to dashboard Cite

show abstract

GAS-HYBRID SOURCE 14C-AMS:Application to terrestrial ecosystem, biological, and environmental research

Cited by 1 publication

References 89 publications

Radiocarbon (14C) Concentration of Local Pollution in Street Trees Located at Intersections

Radiocarbon (14C) Concentration of Local Pollution in Street Trees Located at Intersections

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